How to prevent new record creation on page reload?

[Tina Desai]

Friends,
We have the following:

Scenario:
1. We come to a page by creating a record in the db.
2. The user can enter data and save it multiple times.

Issue:
But if user clicks on reload before step 2, the alert box comes to confirm. On ckick of ok, a new record gets inserted.
A. Can we have some workaround that gets the data but does not insert one more record?
B. Can the refresh be disabled? I have not seen it disabled in the web-apps I browsed so far.

Regards,

[Timothy Sam]

Perhaps you are using model 1 principle?

Create a hidden input type

<input type="hidden" name="saved" value="<%request.getParameter("saved")%>">

on submit, check if the parameter has already been set, if not set it to something

<%
String saved = ((request.getParameter("saved") == null) ? "" : (request.getParameter("saved");
 
if ( saved.equals("") )
{
    saved = "saved"
 
    request.setAttribute("saved", saved);
    //go to your success routine
    //blah
    //blah
    //blah
}
else
{
   //Output error message, no saving twice
}
 
%>

Bear would probably hate me by giving this answer but if it will help you(and I hope it will) I guess I'm ok with that...

Do yourself a favor and learn Model 2

[Christophe Verré]

Redirect After Post:
http://faq.javaranch.com/view?DoubleSubmitProblem

[Christophe Verré]

Do yourself a favor and learn Model 2

Your solution with the hidden param smells like Model 1
[ September 07, 2006: Message edited by: Satou kurinosuke ]

[Chetan Parekh]

Check DoubleSubmitProblem section in FAQs Section of this forum.

[Christophe Verré]

Chetan, you should check it too ;) (joking about same post)

[Chetan Parekh]

Originally posted by Satou kurinosuke:
Chetan, you should check it too ;) (joking about same post)

Hey Satou kurinosuke sorry, I just missed that thing:D

[Timothy Sam]

I was thinking that he might be using model 1 so I decided to give him a solution that fits with it.

[Christophe Verré]

Hehe, ok

[Richard Green]

Originally posted by Timothy Sam:
I was thinking that he might be using model 1 so I decided to give him a solution that fits with it.

he? or she?
friday evening here - so please excuse some unrelated posts

[Tina Desai]

Its SHE!

Timothy, I know model 2! Working on some code not written by us

I have one more issue.. Not going to the confirmation page as such..

Left nav link inserts the record.
And immediately displays it for editing..

I have successfully used a token at a place where the confirmation page is displayed on 'submit' click. But here there is no intermediate such button.
Do we even have a chance to get around this problem in this organization/control flow?

Regards,
Leena
[ September 14, 2006: Message edited by: Tina Desai ]

[Tina Desai]

Anyone?

[Ben Souther]

Can you post the relavent part of your code?
Or,, describe step by step what your program is doing so we can make a suggestion.